| 摘要 |
A non-woven fabric and a composition for impregnating the non-woven fabric are provided to improve mechanical properties of the non-woven fabric and block the spreading of flames, by impregnating the non-woven fabric with the composition consisting of a main agent and a hardening agent. A composition for impregnating a non-woven fabric is composed of a main agent and a hardening agent. The main agent includes castor oil, aluminum hydroxide, melamine, pentaerythritol, ammonium phosphate, and dicyandiamide. The hardening agent includes crude 4,4-diphenylmethane diisocyanate or polymeric 4,4- diphenylmethane diisocyanate. |
